While the core Dual WaveSpring cushioning technology is the same

providing for more toe room and better fitting in the instep and heel

Modern gait assisting midsole geometry with a 34 mm Heel and 28 mm Forefoot stack heights

A great performance short sleeve crew with powerful moisture management design

Women's Stinger Tech PullOver Size:XL While the core Dual WaveSpringMade from Polartec Power Stretch for warmth and softness. Polartec is non pilling, breathable and keeps you warm and dry even if the elements are not. Zipper at the neck at the help regulate the temperature. Abrasion resistant upper body and elbows provides reinforcement and durability. Polartec Power Stretch Body Hugging 4 way stretch Keeps your skin dry when you sweat Provides Warmth Without Weight Highly Breathable to Provide Comfort in All